Bifurcations of the normal modes of the Ne· · ·Br2 complex

  1. Blesa, F. 2
  2. Mahecha, J. 3
  3. Salas, J.P. 1
  4. Iñarrea, M. 1
  1. 1 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

  2. 2 Universidad de Zaragoza
    info

    Universidad de Zaragoza

    Zaragoza, España

    ROR https://ror.org/012a91z28

  3. 3 Universidad de Antioquia
    info

    Universidad de Antioquia

    Medellín, Colombia

    ROR https://ror.org/03bp5hc83

Revista:
Physics Letters, Section A: General, Atomic and Solid State Physics

ISSN: 0375-9601

Año de publicación: 2009

Volumen: 374

Número: 2

Páginas: 191-201

Tipo: Artículo

DOI: 10.1016/J.PHYSLETA.2009.10.050 SCOPUS: 2-s2.0-71849094341 WoS: WOS:000272515800019 GOOGLE SCHOLAR

Otras publicaciones en: Physics Letters, Section A: General, Atomic and Solid State Physics

Resumen

We study the classical dynamics of the rare gas-dihalogen Ne⋯Br2 complex in its ground electronic state. By considering the dihalogen bond frozen at its equilibrium distance, the system has two degrees of freedom and its potential energy surface presents linear and T-shape isomers. We find the nonlinear normal modes of both isomers that determine the phase space structure of the system. By means of surfaces of section and applying the numerical continuation of families of periodic orbits, we detect and identify the different bifurcations suffered by the normal modes as a function of the system energy. Finally, using the Orthogonal Fast Lyapunov Indicator (OFLI), we study the evolution of the fraction of the phase space volume occupied by regular motions. © 2009 Elsevier B.V. All rights reserved.